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src/hotspot/share/runtime/sharedRuntime.cpp

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@@ -3255,20 +3255,28 @@
    for (BasicObjectLock *kptr2 = fr.interpreter_frame_monitor_end();
         kptr2 < fr.interpreter_frame_monitor_begin();
         kptr2 = fr.next_monitor_in_interpreter_frame(kptr2) ) {
      if (kptr2->obj() != nullptr) {         // Avoid 'holes' in the monitor array
        BasicLock *lock = kptr2->lock();
-       // Inflate so the object's header no longer refers to the BasicLock.
-       if (lock->displaced_header().is_unlocked()) {
-         // The object is locked and the resulting ObjectMonitor* will also be
-         // locked so it can't be async deflated until ownership is dropped.
-         // See the big comment in basicLock.cpp: BasicLock::move_to().
-         ObjectSynchronizer::inflate_helper(kptr2->obj());
+       if (LockingMode == LM_LEGACY) {
+         // Inflate so the object's header no longer refers to the BasicLock.
+         if (lock->displaced_header().is_unlocked()) {
+           // The object is locked and the resulting ObjectMonitor* will also be
+           // locked so it can't be async deflated until ownership is dropped.
+           // See the big comment in basicLock.cpp: BasicLock::move_to().
+           ObjectSynchronizer::inflate_helper(kptr2->obj());
+         }
+         // Now the displaced header is free to move because the
+         // object's header no longer refers to it.
+         buf[i] = (intptr_t)lock->displaced_header().value();
        }
-       // Now the displaced header is free to move because the
-       // object's header no longer refers to it.
-       buf[i++] = (intptr_t)lock->displaced_header().value();
+ #ifdef ASSERT
+       else {
+         buf[i] = badDispHeaderOSR;
+       }
+ #endif
+       i++;
        buf[i++] = cast_from_oop<intptr_t>(kptr2->obj());
      }
    }
    assert(i - max_locals == active_monitor_count*2, "found the expected number of monitors");
  
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